Michael Jackson's sister La Toya has thrown her weight behind allegations an impostor was hired to record tracks for the King of Pop's posthumous album, insisting some of the vocals featured are "definitely not" those of her late brother.A report on Tmz.com last week (ends04Mar12) caused a stir among fans after editors claimed Paris Jackson had been caught telling a friend via video chat that the 2010 release, Michael, was recorded by a mimic who had been drafted in to complete her father's songs. In a clip obtained by the website, Paris allegedly played the track Hold My Hand and when asked by her unnamed pal why the voice on the tune didn't sound like her father's, she revealed, "It's not him... the whole album isn't even him!! Go online... go on YouTube and look up Jason Malachi. That's him!! I should know if it's him (Jackson) or not because he would sing to me all the time." The 13 year old immediately dismissed the story, taking to Twitter.com to write, "People should know by now not to believe the media when it comes down to Tmz talking about my family. Hold My Had (sic) IS my dad actually singing." But now La Toya has questioned her niece's logic by revealing that Paris actually called her in a panic after discovering the posthumous tunes were allegedly bogus. During a co-hosting stint on U.S. daytime show The Talk on Monday (05Mar12), La Toya Jackson recalled, "I haven't heard the complete album but I do know some of the songs that I've heard, it is definitely not his voice." Recalling the phone conversation with Paris, she explained, "During that time I was doing (reality show) The Apprentice and Paris called me and said, 'Aunt La Toya, I want you to listen to something... You gotta listen to this, this is not daddy's voice.' "She played it for me and I go, 'Paris, you're right, it's not.' And I kept listening, and kept listening and it was not his voice and she was so concerned about it and she said, 'We gotta put a stop to this. We must to put a stop to this. And I'm not gonna let them (record executives) get by (get away) with this.' "This is a little girl, and this is the way she thinks because she loves her father and she didn't wanna see that out there when it wasn't her father's voice. And she went on to say this is the person who impersonates him and he's very good at it."